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Capacitive built-in touch screen, production method thereof and display device

A capacitive touch screen technology, applied in electrical digital data processing, optics, instruments, etc., can solve the problems of thick touch screen and high production cost, improve production efficiency, save production cost, improve picture quality and touch accuracy Effect

Active Publication Date: 2014-04-02
BOE TECH GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a capacitive inline touch screen, its preparation method, and a display device to solve the problems of large thickness and high production cost of the existing capacitive inline touch screen

Method used

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  • Capacitive built-in touch screen, production method thereof and display device
  • Capacitive built-in touch screen, production method thereof and display device
  • Capacitive built-in touch screen, production method thereof and display device

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Embodiment Construction

[0053] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0054] An embodiment of the present invention provides a capacitive embedded touch screen, including:

[0055] A plurality of vertically intersecting gate scanning lines and data lines, the plurality of vertically intersecting gate scanning lines and data lines defining a plurality of pixel regions;

[0056] a thin film transistor and a pixel electrode located in the pixel area;

[0057] A plurality of common electrodes, the common electrodes are loaded with common electrode signals during the display time period and touch scanning signals are loaded during the touch control time period, and are multiplexed as touch driving electrodes; and

[0058]A plurality of touch sensing electrodes are arranged on the same layer as the data lines and located in cor...

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Abstract

The invention provides a capacitive built-in touch screen, a production method thereof and a display device. The capacitive built-in touch screen comprises multiple grid scanning lines and data lines, multiple common electrodes and multiple touch sensing electrodes. The grid scanning lines and the data lines are crossed perpendicularly. The common electrodes are loaded with common electrode signals within a display time slot and loaded with touch scanning signals within a touch time slot so as to be multiplexed as touch drive electrodes. The multiple touch sensing electrodes are arranged at the same level with the data lines, disposed in corresponding areas of the grid scanning lines, and output touch sensing signals within the touch time slot. The touch drive electrodes and the touch sensing electrodes are in crossed insulating arrangement. As the common electrodes are multiplexed as the touch drive electrodes, and the touch sensing electrodes and the data lines are arranged at the same layer and can be formed by one-step composition process, the touch screen can be produced without extra processes for producing the touch drive electrodes and the touch sensing electrodes, production cost is saved, and production efficiency is improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a capacitive embedded touch screen, a preparation method thereof, and a display device. Background technique [0002] With the rapid development of display technology, touch screen panels (Touch Screen Panels) have gradually spread throughout people's lives. At present, touch screens can be divided into three types according to their structure: Add on Mode Touch Panel, On Cell Touch Panel, and InCell Touch Panel. Among them, the external touch screen is produced separately from the liquid crystal display (Liquid Crystal Display, LCD), and then bonded together. The external touch screen has disadvantages such as high production cost, low light transmittance, and thick modules. . The embedded touch screen embeds the touch electrodes of the touch screen inside the liquid crystal display, which can reduce the overall thickness of the module and greatly reduce the production cost o...

Claims

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Application Information

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IPC IPC(8): G06F3/044
CPCG06F3/0412G06F2203/04103G06F3/0443G06F3/0446G02F1/134318
Inventor 赵利军
Owner BOE TECH GRP CO LTD
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